前

1. noun in front (of); before (e.g. a building)
2. noun, takes の, adverb before; earlier; previously; prior; ago; (minutes) to (the hour)
3. noun, takes の (the) front; frontal part; fore; head (e.g. of a line)
4. noun forward; ahead
5. (in the) presence (of); in front (of someone)
6. takes の previous (e.g. page); prior (e.g. engagement); first (e.g. half); former (e.g. example)
7. suffix, after a noun or the -masu stem of a verb portion; helping
8. noun front (of one's body or clothing); breast (of a coat, kimono, etc.)
9. privates; private parts
10. colloquial criminal record; previous conviction; (a) prior

さき also 先 · 先き

1. noun point; tip; end; nozzle
2. head (of a line); front
3. first; before; ahead (of)
4. (the way) ahead; beyond
5. noun, takes の future
6. takes の, noun previous; prior; former; recent; last
7. noun, suffix destination; address; place where you do something
8. noun rest (e.g. of a story); continuation; remaining part
9. the other party

ぜん

1. prefix last (i.e. immediately preceding); previous; ex-; former
2. before the name of an era pre- (e.g. premodern)
3. suffix, after a noun before
4. noun, adverb, dated before; earlier